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            <small>
              <a href="#Procedure">Procedure<br></a>
              <a href="#Abstract">Abstract<br></a>
              <a href="#Required_Reading">Required_Reading<br></a>
              <a href="#Keywords">Keywords<br></a>
              <a href="#Brief_I/O">Brief_I/O<br></a>
              <a href="#Detailed_Input">Detailed_Input<br></a>

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              <small>               <a href="#Detailed_Output">Detailed_Output<br></a>
              <a href="#Parameters">Parameters<br></a>
              <a href="#Exceptions">Exceptions<br></a>
              <a href="#Files">Files<br></a>
              <a href="#Particulars">Particulars<br></a>
              <a href="#Examples">Examples<br></a>

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              <small>               <a href="#Restrictions">Restrictions<br></a>
              <a href="#Literature_References">Literature_References<br></a>
              <a href="#Author_and_Institution">Author_and_Institution<br></a>
              <a href="#Version">Version<br></a>
              <a href="#Index_Entries">Index_Entries<br></a>
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<h4><a name="Procedure">Procedure</a></h4>
<PRE>
   void cylrec_c ( SpiceDouble r,
                   SpiceDouble lon,
                   SpiceDouble z,
                   SpiceDouble rectan[3] )

</PRE>
<h4><a name="Abstract">Abstract</a></h4>
<PRE>
   Convert from cylindrical to rectangular coordinates.
</PRE>
<h4><a name="Required_Reading">Required_Reading</a></h4>
<PRE>
   None.
</PRE>
<h4><a name="Keywords">Keywords</a></h4>
<PRE>
   CONVERSION
   COORDINATES


</PRE>
<h4><a name="Brief_I/O">Brief_I/O</a></h4>
<PRE>
   VARIABLE  I/O  DESCRIPTION
   --------  ---  -------------------------------------------------
   r          I   Distance of a point from z axis.
   lon        I   Angle (radians) of a point from xZ plane
   z          I   Height of a point above xY plane.
   rectan     O   Rectangular coordinates of the point.
</PRE>
<h4><a name="Detailed_Input">Detailed_Input</a></h4>
<PRE>
   r          Distance of the point of interest from z axis.

   lon        Cylindrical angle (in radians) of the point of
              interest from XZ plane.

   z          Height of the point above XY plane.
</PRE>
<h4><a name="Detailed_Output">Detailed_Output</a></h4>
<PRE>
   rectan     Rectangular coordinates of the point of interest.
</PRE>
<h4><a name="Parameters">Parameters</a></h4>
<PRE>
   None.
</PRE>
<h4><a name="Exceptions">Exceptions</a></h4>
<PRE>
   Error free.
</PRE>
<h4><a name="Files">Files</a></h4>
<PRE>
   None.
</PRE>
<h4><a name="Particulars">Particulars</a></h4>
<PRE>
   This routine transforms the coordinates of a point from
   cylindrical to rectangular coordinates.
</PRE>
<h4><a name="Examples">Examples</a></h4>
<PRE>
   Below are two tables.

   Listed in the first table (under r, lon and z ) are
   cylindrical coordinate triples that approximately represent
   points whose rectangular coordinates are taken from the set
   {-1, 0, 1}.  (Angular quantities are given in degrees.)

   The result of the code fragment

        Use the CSPICE routine <a href="convrt_c.html">convrt_c</a> to convert the angular
        quantities to radians

        <a href="convrt_c.html">convrt_c</a> (  lon, &quot;DEGREES&quot;, &quot;RADIANS&quot;, lon );

        <b>cylrec_c</b> ( r, lon, z, x );


   are listed in the second parallel table under x(1), x(2) and x(3).


     r         lon     z            x(1)       x(2)     x(3)
     -------------------------       --------------------------
     0.0000    0.0000   0.0000       0.0000     0.0000   0.0000
     1.0000    0.0000   0.0000       1.0000     0.0000   0.0000
     1.0000   90.0000   0.0000       0.0000     1.0000   0.0000
     0.0000    0.0000   1.0000       0.0000     0.0000   1.0000
     1.0000  180.0000   0.0000      -1.0000     0.0000   0.0000
     1.0000  270.0000   0.0000       0.0000    -1.0000   0.0000
     0.0000    0.0000  -1.0000       0.0000     0.0000  -1.0000
     1.4142   45.0000   0.0000       1.0000     1.0000   0.0000
     1.0000    0.0000   1.0000       1.0000     0.0000   1.0000
     1.0000   90.0000   1.0000       0.0000     1.0000   1.0000
     1.4142   45.0000   1.0000       1.0000     1.0000   1.0000
</PRE>
<h4><a name="Restrictions">Restrictions</a></h4>
<PRE>
   None.
</PRE>
<h4><a name="Literature_References">Literature_References</a></h4>
<PRE>
   None.
</PRE>
<h4><a name="Author_and_Institution">Author_and_Institution</a></h4>
<PRE>
   E.D. Wright     (JPL)
   W.L. Taber      (JPL)
</PRE>
<h4><a name="Version">Version</a></h4>
<PRE>
   -CSPICE Version 1.0.1, 08-FEB-1998 (EDW)

       Corrected and clarified header entries.  Removed return call.

   -CSPICE Version 1.0.0, 25-OCT-1997 (EDW)
</PRE>
<h4><a name="Index_Entries">Index_Entries</a></h4>
<PRE>
   cylindrical to rectangular
</PRE>
<h4>Link to routine cylrec_c source file <a href='../../../src/cspice/cylrec_c.c'>cylrec_c.c</a> </h4>

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   <pre>Wed Jun  9 13:05:20 2010</pre>

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